Sophia, who is two weeks old and was born with microcephaly, sleeps before her physical therapy session at the Pedro I hospital in Campina Grande, Paraiba state, Brazil, Friday, Feb. 12, 2016. The Zika virus, spread by the Aedes aegypti mosquito, is suspected to be linked with occurrences of microcephaly in new born babies, but no link has been proven yet. (AP Photo/Felipe Dana)

Is Microcephaly In Children Caused By The Zika Virus Or By Pesticides?

Toxic pesticides are used extensively in Brazil’s north-east, where almost a third of cases of microcephaly have occurred so far.

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